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<td style="text-align:center">&#x8BAD;&#x7EC3;&#x96C6;</td>
<td style="text-align:center">x_train</td>
<td style="text-align:center">y_train</td>
</tr>
<tr>
<td style="text-align:center">&#x6D4B;&#x8BD5;&#x96C6;</td>
<td style="text-align:center">x_test</td>
<td style="text-align:center">y_test</td>
</tr>
</tbody>
</table>
<ul>
<li><strong>&#x8BAD;&#x7EC3;&#x96C6;</strong>&#xFF1A;&#x7528;&#x4E8E;&#x5F97;&#x5230;&#x6A21;&#x578B;</li>
<li><strong>&#x6D4B;&#x8BD5;&#x96C6;</strong>&#xFF1A;&#x6D4B;&#x8BD5;&#x6A21;&#x578B;&#x51C6;&#x786E;&#x7387;</li>
</ul>
<h2 class="mume-header" id="%E8%AE%AD%E7%BB%83">&#x8BAD;&#x7EC3;</h2>

<p>&#x4ECE;&#x6570;&#x636E;&#x4E2D;&#x5B66;&#x5F97;&#x6A21;&#x578B;&#x7684;&#x8FC7;&#x7A0B;&#x53EB;&#x505A; <strong>&#x5B66;&#x4E60;&#xFF08;Learning&#xFF09;</strong> &#x6216; <strong>&#x8BAD;&#x7EC3;&#xFF08;Training&#xFF09;</strong>&#x3002;&#x5373;&#x5BFB;&#x627E;&#x4E00;&#x4E2A;&#x4ECE;&#x6837;&#x672C;&#x7A7A;&#x95F4;&#x5230;&#x6807;&#x8BB0;&#x7A7A;&#x95F4;&#x5730;&#x4E00;&#x4E2A;&#x6620;&#x5C04;&#xFF0C;&#x8FD9;&#x4E00;&#x6620;&#x5C04;&#x7531;&#x6A21;&#x578B;&#x6765;&#x8868;&#x793A;&#x3002;</p>
<h3 class="mume-header" id="%E6%B3%9B%E5%8C%96%E8%83%BD%E5%8A%9B">&#x6CDB;&#x5316;&#x80FD;&#x529B;</h3>

<p>&#x9700;&#x8981;&#x7279;&#x522B;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x5B66;&#x4E60;&#x5F97;&#x5230;&#x7684;&#x6A21;&#x578B;&#x662F;&#x4E3A;&#x4E86;&#x80FD;&#x66F4;&#x597D;&#x7684;&#x9002;&#x7528;&#x4E8E;&#x201C;&#x65B0;&#x6837;&#x672C;&#x201D;&#xFF0C;&#x800C;&#x4E0D;&#x4EC5;&#x4EC5;&#x662F;&#x5728;&#x8BAD;&#x7EC3;&#x6837;&#x672C;&#x4E0A;&#x5DE5;&#x4F5C;&#x5F97;&#x5F88;&#x597D;&#x3002;&#x6A21;&#x578B;&#x5BF9;&#x201C;&#x65B0;&#x6837;&#x672C;&#x201D;&#x7684;&#x9002;&#x7528;&#x7A0B;&#x5EA6;&#x5373;&#x79F0;&#x4E3A;<strong>&#x6CDB;&#x5316;&#x80FD;&#x529B;</strong>&#x3002;</p>
<h3 class="mume-header" id="%E5%AD%A6%E4%B9%A0%E5%88%86%E7%B1%BB">&#x5B66;&#x4E60;&#x5206;&#x7C7B;</h3>

<table>
<thead>
<tr>
<th style="text-align:center">&#x7279;&#x5F81;&#x503C;</th>
<th style="text-align:center">&#x76EE;&#x6807;&#x503C;</th>
<th style="text-align:left">&#x5B66;&#x4E60;&#x7C7B;&#x578B;</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">&#x221A;</td>
<td style="text-align:center">&#x221A;</td>
<td style="text-align:left">&#x76D1;&#x7763;&#x5B66;&#x4E60;&#xFF08;Supervised Learning&#xFF09;</td>
</tr>
<tr>
<td style="text-align:center">&#x221A;</td>
<td style="text-align:center">&#xD7;</td>
<td style="text-align:left">&#x65E0;&#x76D1;&#x7763;&#x5B66;&#x4E60;&#xFF08;Unsupervised Learning&#xFF09;</td>
</tr>
</tbody>
</table>
<h3 class="mume-header" id="%E9%97%AE%E9%A2%98%E5%88%86%E7%B1%BB">&#x95EE;&#x9898;&#x5206;&#x7C7B;</h3>

<table>
<thead>
<tr>
<th style="text-align:center">&#x76EE;&#x6807;&#x503C;</th>
<th style="text-align:left">&#x540D;&#x79F0;</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">&#x79BB;&#x6563;&#x503C;</td>
<td style="text-align:left">&#x5206;&#x7C7B;&#xFF08;Regression&#xFF09;</td>
</tr>
<tr>
<td style="text-align:center">&#x8FDE;&#x7EED;&#x503C;</td>
<td style="text-align:left">&#x56DE;&#x5F52;&#xFF08;Classification&#xFF09;</td>
</tr>
<tr>
<td style="text-align:center">&#xD7;</td>
<td style="text-align:left">&#x805A;&#x7C7B;&#xFF08;Clustering&#xFF09;</td>
</tr>
</tbody>
</table>
<h2 class="mume-header" id="%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0%E7%9B%B8%E5%85%B3%E7%90%86%E8%AE%BA">&#x673A;&#x5668;&#x5B66;&#x4E60;&#x76F8;&#x5173;&#x7406;&#x8BBA;</h2>

<h3 class="mume-header" id="%E4%B8%91%E5%B0%8F%E9%B8%AD%E5%AE%9A%E7%90%86">&#x4E11;&#x5C0F;&#x9E2D;&#x5B9A;&#x7406;</h3>

<p>&#x4E16;&#x754C;&#x4E0A;&#x4E0D;&#x5B58;&#x5728;&#x5BA2;&#x89C2;&#x7684;&#x5206;&#x7C7B;&#x6807;&#x51C6;&#xFF0C;&#x4E00;&#x5207;&#x5206;&#x7C7B;&#x7684;&#x6807;&#x51C6;&#x90FD;&#x662F;&#x4E3B;&#x89C2;&#x7684;&#x3002;</p>
<h3 class="mume-header" id="%E5%A5%A5%E5%8D%A1%E5%A7%86%E5%89%83%E5%88%80%E5%8E%9F%E5%88%99">&#x5965;&#x5361;&#x59C6;&#x5243;&#x5200;&#x539F;&#x5219;</h3>

<p>&#x82E5;&#x6709;&#x591A;&#x4E2A;&#x5047;&#x8BBE;&#x4E0E;&#x89C2;&#x5BDF;&#x4E00;&#x81F4;&#xFF0C;&#x5219;&#x9009;&#x6700;&#x7B80;&#x5355;&#x7684;&#x90A3;&#x4E2A;&#x3002;</p>
<h3 class="mume-header" id="nfl%E5%AE%9A%E7%90%86">NFL&#x5B9A;&#x7406;</h3>

<p>NFL&#xFF08;No Free Lunch Theorem&#xFF09;&#xFF0C;&#x8BD1;&#x4E3A;&#x201C;&#x6CA1;&#x6709;&#x514D;&#x8D39;&#x7684;&#x5348;&#x9910;&#x201D;&#xFF0C;&#x5373;&#x65E0;&#x8BBA;&#x7B97;&#x6CD5;1&#x591A;&#x4E48;&#x806A;&#x660E;&#xFF0C;&#x7B97;&#x6CD5;2&#x591A;&#x4E48;&#x7B28;&#x62D9;&#xFF0C;&#x5B83;&#x4EEC;&#x7684;&#x671F;&#x671B;&#x6027;&#x80FD;&#x76F8;&#x540C;&#x3002;&#x8BE5;&#x5B9A;&#x7406;&#x544A;&#x8BC9;&#x6211;&#x4EEC;&#xFF0C;&#x8131;&#x79BB;&#x5177;&#x4F53;&#x95EE;&#x9898;&#xFF0C;&#x7A7A;&#x6CDB;&#x5730;&#x8C08;&#x8BBA;&#x4EC0;&#x4E48;&#x7B97;&#x6CD5;&#x66F4;&#x597D;&#x6BEB;&#x65E0;&#x610F;&#x4E49;&#x3002;</p>
<h3 class="mume-header" id="%E5%BD%92%E7%BA%B3%E5%81%8F%E7%BD%AE">&#x5F52;&#x7EB3;&#x504F;&#x7F6E;</h3>

<p>&#x6211;&#x4EEC;&#x7ECF;&#x5E38;&#x4F1A;&#x5BF9;&#x4E00;&#x4E9B;&#x95EE;&#x9898;&#x505A;&#x4E00;&#x4E9B;&#x5047;&#x8BBE;&#xFF08;&#x5F52;&#x7EB3;&#x504F;&#x7F6E;&#xFF09;&#x3002;&#x6BD4;&#x5982;&#xFF1A;&#x5728;KNN&#x4E2D;&#xFF0C;&#x6211;&#x5047;&#x8BBE;&#x7279;&#x5F81;&#x7A7A;&#x95F4;&#x4E2D;&#x4E00;&#x4E2A;&#x5C40;&#x90E8;&#x533A;&#x57DF;&#x7684;&#x5927;&#x90E8;&#x5206;&#x6837;&#x672C;&#x540C;&#x5C5E;&#x4E8E;&#x4E00;&#x7C7B;&#xFF1B;&#x5728;NaiveBayes&#x4E2D;&#xFF0C;&#x5047;&#x8BBE;&#x6BCF;&#x4E2A;&#x7279;&#x5F81;&#x7684;&#x6761;&#x4EF6;&#x6982;&#x7387;&#x76F8;&#x4E92;&#x72EC;&#x7ACB;&#xFF08;&#x8BE5;&#x5047;&#x8BBE;&#x4E5F;&#x79F0;&#x4E3A;<strong>&#x5148;&#x9A8C;</strong>&#xFF09;&#x3002;</p>

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